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rc/sh/recombine

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#!/usr/bin/env false
# FAKE_COMPAT
cd ~/sh && unset IFS || exit
[ -z "${0##/*}" ] && sh=zsh || sh="${0#-}" # zsh replaces $0, so hardcode it
case "$sh" in
(ash) SH=ASH c=ash;;
(bash) SH=BASH c=bash;;
(dash) SH=DASH c=dash;;
(hush) SH=HUSH c=hush;;
(ksh) SH=KSH c=ksh;;
(loksh) SH=OKSH c=oksh;; # similar enough to oksh to use the same compatibility flag
(mksh) SH=MKSH c=mksh;;
(oksh) SH=OKSH c=oksh;;
(osh) SH=OSH c=osh;;
(posh) SH=POSH c=posh;;
(yash) SH=YASH c=yash;;
(zsh) SH=ZSH c=zsh; set -o SH_WORD_SPLIT;;
(*)
printf >&2 %s\\n "unknown shell (\$0): $0"
exit 1
esac
printf %s\\n '#!/usr/bin/env false' '[ -n "$preload" ] || exit 1' ''
for f in "${HOME:?}/sh"/*; do
[ -n "${f##*.*}" ] && [ -f "$f" ] || continue
i=10 sh=
while IFS= read -r line; do
check=0
for word in $line; do
case "$word" in (YES_$SH) sh=1;; (NO_$SH) sh=0;; (compat:) check=1;; esac
[ "$check" != 1 ] || case "$word" in (+$c) sh=1;; (-$c) sh=0;; esac
done
[ "$((i-=1))" != 0 ] || break # act like head -n10
done < "$f"
[ "$sh" != 1 ] || set -- "$@" "$f"
done
[ $# = 0 ] || cat "$@"